A kilometer is a measure of an object's

What kínd of cloud that is puffy and often with flat bases.

Force is a vector due to its mass being a vector quantity: O True O False

Which statement is true for an elastic collision in two dimensions? Kinetic energy is not conserved. Momentum is not conserved. Only momentum is conserved. Kinetic energy and momentum are conserved.

Which of the following can be calculated when given the radius of a wheel and the radius of an axle? A. The effort force needed to move the wheel and axle. B. The amount of resistance force the wheel and axle can overcome. C.

A paper airplane has an acceleration of 5 m/s^2. If it is thrown from rest (0 m/s), how fast will it be going in 3 seconds?

When you are travelling downhill on a roller coaster, you experience a light feeling in your stomach. why?

Sound waves transport: a. only matter b. only energy c. both matter and energy d. matter when passing through a medium and energy passing through vaccum

What's the number 9?

A car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 30.0 mi/h.

Why is it dangerous to be exposed to X-rays but not (or at least much less) dangerous to be exposed to radio waves?